34781906 has 8 divisors (see below), whose sum is σ = 52907904. Its totient is φ = 17145940.

The previous prime is 34781893. The next prime is 34781917. The reversal of 34781906 is 60918743.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 34781906.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122330 + ... + 122613.

It is an arithmetic number, because the mean of its divisors is an integer number (6613488).

Almost surely, 2^34781906 is an apocalyptic number.

34781906 is a deficient number, since it is larger than the sum of its proper divisors (18125998).

34781906 is a wasteful number, since it uses less digits than its factorization.

34781906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245016.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 34781906 is about 5897.6186719726. The cubic root of 34781906 is about 326.4257863715.

The spelling of 34781906 in words is "thirty-four million, seven hundred eighty-one thousand, nine hundred six".